1.

Prefect Board

(Head Prefect, Deputy Head Prefect, Senior Prefect, Prefect)

領袖生委員會

(正、副總領袖生，資深領袖生，領袖生)

2.

Student Counsellor Board (Head Student Counsellor,

Deputy Head Student Counsellor, Student Counsellor)

輔導學長委員會

(正、副輔導學長，輔導學長)

3.

ECA Ambassador

課外活動學生大使

4.

Career and Life Planning (CLP) Team

(Head CLP Ambassador, Vice-Head Ambassador, CLP Ambassador, CLP Co-ordinator)

生涯規劃學生委員會

(總生涯規劃學生大使，副總生涯規劃學生大使，生涯規劃學生大使，生涯規劃學生聯絡員)

5.

Extra-curricular Activities (ECA) Team

Student Association

(Chairperson, Vice Chairperson & Ex-Com Member)

學生會

(正、副主席及執行委員會成員)

House System

(House Captain, Vice House Captain and House Official)

b.

四社

(正、副社長及社幹事)

c.

Club and Society

(Chairperson, Vice Chairperson and Official)

c.

學會

(正、副主席及幹事)

6.

Class Club and Monitors’ Council (Chairperson, Vice Chairperson, Official and Monitor/Monitress,)

班會及班長議會

(正、副主席、幹事及男、女班長)

7.

Parent-Teacher Association (PTA)

(PTA Student Service Ambassador)

家長教師會

(家長教師會學生服務大使)

8.

STMGSS Elder Academy

(STMGSS Elder Academy Student Goodwill Ambassador)

南官長者學苑

(南官長者學苑學生親善大使)

9.

English Environment Enrichment (EEE) Committee

(English Ambassador)

英語環境促進委員會

(英語大使)

10.

Moral, Civic and National Education Ambassador

德育、公民及國民教育大使

11.

Environmental Education

(Environmental Protection Ambassador)

環境教育教育

(環保大使)

12.

Health & Sex Education

(Health Ambassador)

健康與性教育

(健康大使)

13.

Healthy School Programme

(Sunshine Teen)

健康校園計劃

(清新大使)

14.

Campus TV and Media Production Studio @STMGSS Student

Support Team (Campus TV and Media Production Studio @STMGSS Student Support Team Member)

南官校園電視台及媒體製作工作室學生支援組 (南官校園電視台及媒體製作工作室學生支援組成員)

15.

Public Announcement Student Support Team

(Public Announcement Student Support Team Member)

公眾宣佈學生支援組

(公眾宣佈學生支援組成員)

16.

Event & Stage Management Student Support Team

(Event & Stage Management Student Support Team Member)

項目及舞台管理學生支援組

(項目及舞台管理學生支援組成員)